22024220805 has 18 divisors (see below), whose sum is σ = 38177041734. Its totient is φ = 11745720144.

The previous prime is 22024220789. The next prime is 22024220833. The reversal of 22024220805 is 50802242022.

It can be written as a sum of positive squares in only one way, i.e., 17619376644 + 4404844161 = 132738^2 + 66369^2 .

It is not a de Polignac number, because 22024220805 - 2⁴ = 22024220789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 984474 + ... + 1006596.

It is an arithmetic number, because the mean of its divisors is an integer number (2120946763).

Almost surely, 2^22024220805 is an apocalyptic number.

It is an amenable number.

22024220805 is a deficient number, since it is larger than the sum of its proper divisors (16152820929).

22024220805 is an frugal number, since it uses more digits than its factorization.

22024220805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44257 (or 22131 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Multiplying 22024220805 by its product of nonzero digits (5120), we get a square (112764010521600 = 10619040²).

Adding to 22024220805 its reverse (50802242022), we get a palindrome (72826462827).

The spelling of 22024220805 in words is "twenty-two billion, twenty-four million, two hundred twenty thousand, eight hundred five".